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3 years ago

Complete the following radicals in their simplest forms: (3z)^-1/2 (10n)^3/2

Mathematics

1 answer:

Oksanka [162]3 years ago

7 0

I just used photomath, here's the answers.

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The ability of lizards to recognize their predators via tongue flicks can often mean life or death for lizards. Seventeen juveni

Sloan [31]

Answer:

Confidence level is (380.7133, 533.2867)

Step-by-step explanation:

Responses in number of tongue flicks per 20 minutes of lizards, are: 727,217, 268, 438, 625, 319, 200, 591, 574, 727, 693, 336, 302, 761, 268, 353, 370

n = 17

Mean (μ) is:

$\mu=\frac{{\Sigma}x}{n} = \frac{727+217+ 268+ 438+ 625+ 319+ 200+ 591+ 574+ 727+ 693+ 336+ 302+ 761+ 268+ 353+ 370}{17} = 439.3529$

Standard deviation (σ) is:

$\sigma=\sqrt{\frac{\Sigma(x-\mu^2)}{n} } =\sqrt{\frac{(727-457)^2+(217-457)^2+...+(370-457)^2}{17} } =191.2$

The confidence interval (c) = 90% = 0.9

$\alpha=1-0.9=0.1\\\frac{\alpha }{2} = 0.05\\Z_{\frac{\alpha }{2} }=1.64$

Margin of error (e) = $=Z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} }=1.64*\frac{191.2}{\sqrt{17} }=76.2867$

Confidence level = μ ± e = 457 ± 76.2867 = (380.7133, 533.2867)

8 0

4 years ago

A boy has only dimes and quarters in his piggy bank. if he has 70 coins worth 13 dollars and 60 cents altogether, how many quart

Nimfa-mama [501]

11 i think check I am not sure I think I did this problem already

3 0

4 years ago

Explain why you would make one of the addends a tens number when solving an addition problem

Marianna [84]

Because your adding on 10more

5 0

4 years ago

In the xy- plane, the graph of the equation y + 3x + 5 is a line that intersects the y-axis at (0,b) what is the value of b?

maxonik [38]

Answer:

$b=5$

Step-by-step explanation:

The given equation is:

$y=3x+5$

To find the point where this line intersect the y-axis, we put x=0 into the given equation.

When x=0, we have $y=3(0)+5$ .

This implies that; y=5.

The y-intercept is (0,5).

Comparing (0,5) to (0,b), we can conclude that; b=5

8 0

4 years ago

The following items appear on the balance sheet of a company with a

Setler [38]

Answer: 1. C, 2. C

Step-by-step explanation:

Salaries payable is C (a Current Liability) This is so because the company owes salaries to its workers which were left unpaid as at the end of the year. This amount is reported on the balance sheet as one of the company's current liabilities.

2. Current portion of a long term debt is C(a current liability) This is so because the amount of the loan principal that will be due within one year of the date of the balance sheet is yet to be paid. This amount is reported on the balance sheet as one of the company's current liabilities.

4 0

3 years ago